feat(config): 添加配置管理和MQTT模拟服务功能

- 实现了应用配置的数据类结构(MqttConfig, TmsConfig, AppConfig)
- 创建了配置加载和解析功能，支持从YAML文件读取配置
- 添加了TDengine数据库配置和连接池管理
- 实现了MQTT客户端依赖注入和服务构建
- 创建了钻孔实时数据的ORM映射和SQL构建功能
- 实现了TDengine Writer用于数据写入超级表
- 添加了MQTT模拟服务，支持发布、订阅和数据转发功能
- 创建了随机数据发送器用于测试
- 实现了消息持久化到本地文件功能
- 配置了数据库连接池和SQL执行功能

db/pool.py

@@ -0,0 +1,60 @@
+import base64
+from queue import LifoQueue
+from urllib.request import Request, urlopen
+
+
+class TaosConnection:
+    def __init__(self, base_url, username, password, timeout=10):
+        self.base_url = base_url
+        self.username = username or ""
+        self.password = password or ""
+        self.timeout = timeout
+
+    def execute(self, sql):
+        auth = f"{self.username}:{self.password}"
+        auth_header = base64.b64encode(auth.encode("utf-8")).decode("ascii")
+        req = Request(
+            url=f"{self.base_url}/rest/sql",
+            data=sql.encode("utf-8"),
+            headers={
+                "Authorization": f"Basic {auth_header}",
+                "Content-Type": "text/plain",
+            },
+            method="POST",
+        )
+        with urlopen(req, timeout=self.timeout) as resp:
+            body = resp.read().decode("utf-8", errors="replace")
+            if resp.status != 200:
+                raise RuntimeError(f"HTTP {resp.status} {body}")
+            return body
+
+
+class TaosConnectionPool:
+    def __init__(self, base_url, username, password, pool_size=2, timeout=10):
+        self.base_url = base_url
+        self.username = username
+        self.password = password
+        self.pool_size = max(int(pool_size or 1), 1)
+        self.timeout = timeout
+        self._pool = LifoQueue(maxsize=self.pool_size)
+        for _ in range(self.pool_size):
+            self._pool.put(TaosConnection(base_url, username, password, timeout=timeout))
+
+    def execute(self, sql):
+        conn = self._pool.get()
+        try:
+            return conn.execute(sql)
+        finally:
+            self._pool.put(conn)
+
+
+def create_taos_pool(config):
+    if not config.enabled:
+        return None
+    return TaosConnectionPool(
+        config.base_url,
+        config.username,
+        config.password,
+        pool_size=config.pool_size,
+        timeout=config.timeout,
+    )